Circle Cutting Jig ( for the bandsaw)

This is my second attempt at this blog after loosing the first two thirds last time, whilst blogging. Is there a size limit on blogs I wonder (Martin)?
I digress. My first circle jig (Version 1.0) worked fine but lacked positioning accuracy. So on to version 2.
The materials for this jig were pretty much what I had on hand. Chipboard (they throw away half sheets of 10mm stuff that comes in with deliveries where I work), Beech, 8mm threaded rod, nuts, washers etc. The idea for the jig is...

Right having got the sliding table to run in it’s runners properly, with the application of some wax, the next thing to do is install an 8mm ‘T’ nut into the jaw end of the sliding table. thus--The rod will be captive in the left fixed table and so any rotation of it will now be transmitted by the ‘T’ nut into movement of the sliding table, to and from the blade position. The one on the top of the sliding table is just there to show you what the ‘T’ n...

One obvious failing on the jig was pointed out by Trevor (tdv) in that with the sliding table away from the right hand side of the blade the workpiece is unsupported on this side and could suffer chipout. Good point so
Version 2.1 -TDV modification--A small piece of beech is fixed to the jaw of the left fixed table to act as a sacrificial zero clearance jaw. The corresponding cutout is made in the sliding table jaw to accommodate this and allow the jaw to still close up.As its screwed into...